﻿#region Copyright

// The contents of this file are subject to the Mozilla Public License
//  Version 1.1 (the "License"); you may not use this file except in compliance
//  with the License. You may obtain a copy of the License at
//  
//  http://www.mozilla.org/MPL/
//  
//  Software distributed under the License is distributed on an "AS IS"
//  basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
//  License for the specific language governing rights and limitations under 
//  the License.
//  
//  The Initial Developer of the Original Code is Robert Smyth.
//  Portions created by Robert Smyth are Copyright (C) 2008.
//  
//  All Rights Reserved.

#endregion

using System;
using NUnitGrid.Framework;


namespace NUnitGrid.Server.Plugins.GridNodesLink.Node.States
{
    public class StartingState : IGridNodeState, IReadInfoListener
    {
        private readonly IStateEngine<IGridNodeState> stateEngine;
        private readonly IServerStateFactory serverStateFactory;
        private readonly IProtocolMaster protocol;

        public StartingState(IStateEngine<IGridNodeState> stateEngine, IServerStateFactory serverStateFactory, IProtocolMaster protocol)
        {
            this.stateEngine = stateEngine;
            this.serverStateFactory = serverStateFactory;
            this.protocol = protocol;
        }

        public void OnEntering()
        {
            protocol.ReadInfo(this);
        }

        public void Start()
        {
            throw new InvalidOperationException("Cannot start when starting.");
        }

        void IReadInfoListener.OnInfoRead(bool succeeded)
        {
            if (succeeded)
            {
                stateEngine.ChangeState(serverStateFactory.CreateAvailableState());            
            }
            else
            {
                stateEngine.ChangeState(serverStateFactory.CreateFailedState());
            }
        }
    }
}